package com.market.domain.strategy.service;

import com.market.domain.strategy.model.entity.RaffleAwardEntity;
import com.market.domain.strategy.model.entity.RaffleFactorEntity;
import com.market.domain.strategy.model.entity.RuleActionEntity;
import com.market.domain.strategy.model.entity.StrategyAwardEntity;
import com.market.domain.strategy.model.valobj.RuleLogicCheckTypeVO;
import com.market.domain.strategy.model.valobj.StrategyAwardRuleModelVO;
import com.market.domain.strategy.repository.IStrategyRepository;
import com.market.domain.strategy.service.armory.IStrategyDispatch;
import com.market.domain.strategy.service.rule.chain.ILogicChain;
import com.market.domain.strategy.service.rule.chain.factory.DefaultChainFactory;
import com.market.domain.strategy.service.rule.tree.factor.DefaultTreeFactory;
import com.market.types.enums.ResponseCode;
import com.market.types.exception.AppException;
import lombok.Data;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;

import java.util.Date;

//抽奖策略抽象类
@Slf4j
public abstract class AbstractRaffleStrategy implements IRaffleStrategy {

    protected IStrategyRepository repository;
    protected IStrategyDispatch strategyDispatch;

    protected final DefaultChainFactory defaultChainFactory;

    protected final DefaultTreeFactory defaultTreeFactory;


    public AbstractRaffleStrategy(IStrategyRepository repository, IStrategyDispatch strategyDispatch, DefaultChainFactory defaultChainFactory, DefaultTreeFactory defaultTreeFactory) {
        this.repository = repository;
        this.strategyDispatch = strategyDispatch;
        this.defaultChainFactory = defaultChainFactory;
        this.defaultTreeFactory = defaultTreeFactory;
    }



    @Override
    public RaffleAwardEntity performRaffle(RaffleFactorEntity raffleFactorEntity) {

        // 1. 参数校验
        String userId = raffleFactorEntity.getUserId();
        Long strategyId = raffleFactorEntity.getStrategyId();
        if (null == strategyId || StringUtils.isBlank(userId)) {
            throw new AppException(ResponseCode.ILLEGAL_PARAMETER.getCode(), ResponseCode.ILLEGAL_PARAMETER.getInfo());
        }

        /**
         * 2.责任链处理抽奖
         * 拿到最初的奖品vo
         */
        DefaultChainFactory.StrategyAwardVO chainStrategyAwardVO = raffleLogicChain(userId, strategyId);
        log.info("抽奖策略计算-责任链 {} {} {} {}", userId, strategyId, chainStrategyAwardVO.getAwardId(), chainStrategyAwardVO.getLogicModel());
        //黑名单和权重抽奖直接返回
        if (!DefaultChainFactory.LogicModel.RULE_DEFAULT.getCode().equals(chainStrategyAwardVO.getLogicModel())) {
            return buildRaffleAwardEntity(strategyId, chainStrategyAwardVO.getAwardId(), chainStrategyAwardVO.getAwardRuleValue());
        }

        /**
         * 3. 规则树抽奖过滤
         * 【奖品ID，会根据抽奖次数判断、库存判断、兜底返回最终的可获得奖品信息】
         */
        DefaultTreeFactory.StrategyAwardVO treeStrategyAwardVO = raffleLogicTree(userId, strategyId, chainStrategyAwardVO.getAwardId(),raffleFactorEntity.getEndDateTime());
        log.info("抽奖策略计算-规则树 {} {} {} {}", userId, strategyId, treeStrategyAwardVO.getAwardId(), treeStrategyAwardVO.getAwardRuleValue());

        // 4. 返回抽奖结果
        return buildRaffleAwardEntity(strategyId, treeStrategyAwardVO.getAwardId(), treeStrategyAwardVO.getAwardRuleValue());
    }

    private RaffleAwardEntity buildRaffleAwardEntity(Long strategyId, Integer awardId, String awardConfig) {
        StrategyAwardEntity strategyAward = repository.queryStrategyAwardEntity(strategyId, awardId);
        return RaffleAwardEntity.builder()
                .awardId(awardId)
                .awardTitle(strategyAward.getAwardTitle())
                .awardConfig(awardConfig)
                .sort(strategyAward.getSort())
                .build();
    }

    /**
     * 抽奖计算，责任链抽象方法(如果是黑名单返回的awardId就不需要走规则树。所以要先扩展一下
     *
     * @param userId     用户ID
     * @param strategyId 策略ID
     * @return 奖品ID
     */
    public abstract DefaultChainFactory.StrategyAwardVO raffleLogicChain(String userId, Long strategyId);

    /**
     * 抽奖结果过滤，决策树抽象方法
     *
     * @param userId     用户ID
     * @param strategyId 策略ID
     * @param awardId    奖品ID
     * @return 过滤结果【奖品ID，会根据抽奖次数判断、库存判断、兜底兜里返回最终的可获得奖品信息】
     */
    public abstract DefaultTreeFactory.StrategyAwardVO raffleLogicTree(String userId, Long strategyId, Integer awardId);

    /**
     * 抽奖结果过滤，决策树抽象方法
     *
     * @param userId     用户ID
     * @param strategyId 策略ID
     * @param awardId    奖品ID
     * @param endDateTime 结束时间
     * @return 过滤结果【奖品ID，会根据抽奖次数判断、库存判断、兜底兜里返回最终的可获得奖品信息】
     */
    public abstract DefaultTreeFactory.StrategyAwardVO raffleLogicTree(String userId, Long strategyId, Integer awardId, Date endDateTime);

}
